CN108252949A - Mixed flow wind wheel and flow-mixing blower fan - Google Patents
Mixed flow wind wheel and flow-mixing blower fan Download PDFInfo
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- CN108252949A CN108252949A CN201810085093.0A CN201810085093A CN108252949A CN 108252949 A CN108252949 A CN 108252949A CN 201810085093 A CN201810085093 A CN 201810085093A CN 108252949 A CN108252949 A CN 108252949A
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- string
- musical instrument
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
Abstract
The invention discloses a kind of mixed flow wind wheel and flow-mixing blower fan, the mixed flow wind wheel includes transcapsidation, wheel hub and multiple blades.Transcapsidation has air outlet and air inlet in opposite end, wheel hub is located in transcapsidation, wheel hub is equipped with pedestal in one end towards air inlet, base ring is set around the rotation axis of wheel hub, multiple blades are circumferentially arranged along wheel hub, the inner end of each blade is connected with wheel hub, and the outer end of each blade is connected with transcapsidation, and each blade is connected with pedestal.The inlet angle a1, a1 of blade meet relational expression：10°≤a1≤40°.The angle of outlet a2, a1 of blade meet relational expression：35 °≤a2≤75 °, vane inlet area is differed with blade exit area.Flow-mixing blower fan according to embodiments of the present invention realizes mixed flow wind wheel and directly inhales in line characteristic, ensure that air-flow enters wind turbine to wind turbine is left from air inlet and is, the angle that air-flow turns to is smaller, ensure that outlet air wind pressure and air output.
Description
Technical field
The present invention relates to family's electro-technical field more particularly to a kind of mixed flow wind wheels and flow-mixing blower fan.
Background technology
The wind turbine that current household electric appliances generally use has axis stream, centrifugation and mixed flow these types.The wind turbine of each type is all
There is its unique characteristic.Axial flow blower does not change the direction of air movement, and comparable in rotating speed, air quantity is big, and noise is very
It is low, but wind pressure very little, encounter end resistance after air outlet it is big in the case of exhaust effect it is very poor or even will appear refluence.Smoke machine one
As the forward multi-wing centrifugal blower air quantity that uses it is larger, wind pressure is high, and noise is larger, but since air movement direction being changed
90 degree, the turn that the air for being has to pass through one 90 degree could enter blower interior, cause flow losses.Flow-mixing blower fan is same
For performance between centrifugation and axis stream, air quantity is small compared with axial flow blower under rotating speed, but wind pressure it is big compared with axial flow blower and compared with centrifugal blower
It is small.Larger in view of air drag caused by common flue back pressure, general smoke machine all uses multiple wing type centrifugal on the market now
Wind turbine is as main air blower system.
Existing smoke machine considers the demand of airflow pressure, generally all carries out air draft using forward multi-wing centrifugal blower.
Wind turbine is generally placed on vertically above smoke collecting chamber, and flue gas turns 90 degree by smoke collecting chamber and enters blower interior, then pass through wind turbine again
Centrifugal force and the spiral case guiding of offer exclude spiral case air outlet.There are also smoke machine proposition directly to inhale in line concept, by wind turbine into
Air port faces kitchen range region, and the beam wind that centrifugal blower comes out is directed to vertical direction reality again by spiral case or pipe design
Existing air draft.But since air movement direction is changed 90 degree of characteristic by forward multiple wing formula wind turbine, air, which enters wind turbine, to be had
One 90 degree of turn causes flow losses and vortex regenerated noise.The in line mode of directly suction that some smoke machines propose, actually
And import is turned to 90 degree of flow losses and has been transformed into fan outlet position, the wind that will laterally be discharged by spiral case or pipeline
Turn 90 degree of smoke pipes for being connected to vertical direction, do not reduce flow losses fundamentally, and due to air outlet wind speed more
Greatly, flow losses may be caused more serious.
Invention content
The present invention is directed at least solve one of technical problem in the prior art.For this purpose, the present invention proposes a kind of mix
Wind wheel is flowed, the mixed flow wind wheel, which can be realized, directly inhales in line mode, and flow losses are smaller.
The present invention, which also aims to, proposes a kind of flow-mixing blower fan for including the mixed flow wind wheel.
Mixed flow wind wheel according to embodiments of the present invention, including：Transcapsidation, the transcapsidation opposite end have air outlet and into
Air port；Wheel hub, the wheel hub are located in the transcapsidation, and the wheel hub is equipped with pedestal in one end towards the air inlet, described
Base ring is set around the rotation axis of the wheel hub；Multiple blades, the multiple blade are circumferentially arranged along the wheel hub, each
The inner end of the blade is connected with the wheel hub, and the outer end of each blade is connected with the transcapsidation, each blade and
The pedestal is connected；Wherein：The tangent line of arbitrary point on middle face import curve and cross the point and parallel with the rotation axis
Parallel lines between angle be inlet angle a1, a1 meets relational expression：10°≤a1≤40°；Arbitrary point on middle face exit curve
Tangent line and the angle crossed between the point and the parallel lines parallel with the rotation axis be angle of outlet a2, a1 meets relationship
Formula：35°≤a2≤75°；Wherein, each blade is respectively provided with pressure face, suction surface and middle face, the middle face and the pressure
The distance between face is equal to the distance between the middle face and the suction surface；Described in the direction of the middle face and the blade into
Intersection between the end face in air port is the middle face import curve, the middle face and the end of the direction air outlet of the blade
Intersection between face is the middle face exit curve；In addition, the middle face import curve respectively with the transcapsidation, the pedestal
Line between intersection point is the import string of a musical instrument, and the import string of a musical instrument is around the area of one week annular surface formed of the rotation axis
Vane inlet area, the middle face exit curve respectively with the transcapsidation, the wheel hub intersection point between line for outlet string
Line, the outlet string of a musical instrument are blade exit area around the area of annular surface that the rotation axis one week is formed, the blade
Inlet -duct area is differed with the blade exit area.
Flow-mixing blower fan according to embodiments of the present invention is realized due to transcapsidation in opposite end with air inlet and air outlet
Mixed flow wind wheel directly inhales in line characteristic, and all inlet angles are controlled in the range of 10 ° -40 °, by all outlet ports angle
Control in the range of 35 ° -75 °, ensure that air-flow enters wind turbine to wind turbine is left from air inlet and is, air-flow turn to angle compared with
Small, the flow losses compared to traditional multiple wing type centrifugal blower fan are smaller, ensure that outlet air wind pressure and air output.Further, since blade
Inlet -duct area is differed with blade exit area, and staff can design vane inlet area and blade exit according to actual conditions
The magnitude relationship of area, to realize different functions, so as to expand the scope of application of the mixed flow wind wheel of the embodiment of the present invention.
In some embodiments, the intersection point of the import string of a musical instrument and the pedestal is point in import, point in excessively described import
And with the perpendicular plane of the rotation axis be first level face, point is vertical between the rotation axis in the import
Line is the first reference line, between projection line and first reference line of the import string of a musical instrument on the first level face
Angle is the horizontal projected angle b1 of import, and b1 meets relational expression：25°≤b1≤40°.
In some embodiments, the intersection point of the outlet string of a musical instrument and the wheel hub is point in outlet, point in excessively described outlet
And with the perpendicular plane of the rotation axis be the second horizontal plane, it puts in the outlet vertical between the rotation axis
Line is the second reference line, between projection line and second reference line of the outlet string of a musical instrument on second horizontal plane
Angle is that outlet floor projection angle b2, b2 meet relational expression：25°≤b2≤40°.
In some embodiments, the plane of excessively described rotation axis is vertical plane, and the import string of a musical instrument is in the vertical plane
On projection the rotation axis between angle be import vertical projection angle c1, c1 meets relational expression：60°≤c1≤80°.
In some embodiments, the plane of excessively described rotation axis is vertical plane, and the outlet string of a musical instrument is in the vertical plane
On projection the rotation axis between angle be outlet vertical projection angle c2, c2 meet relational expression：0°≤c2≤10°.
In some embodiments, the intersection point of the import string of a musical instrument and the transcapsidation is import exterior point, the import string of a musical instrument with
The intersection point of the pedestal is point in import, and the vertical join line between the import exterior point and the rotation axis is the exterior point string of a musical instrument,
The determining plane of point is exterior point string of a musical instrument plane in the exterior point string of a musical instrument and the import, excessively described rotation axis and with the exterior point
The vertical plane of string of a musical instrument plane is first plane of reference, projection of the exterior point string of a musical instrument on first plane of reference and the rotation
Angle between axis is that the exterior point string of a musical instrument angle d1, d1 meet relational expression：30°≤d1≤50°.
In some embodiments, the intersection point of the import string of a musical instrument and the transcapsidation is import exterior point, the import string of a musical instrument with
The intersection point of the pedestal is point in import, and the vertical join line put between the rotation axis in the import is the interior string of a musical instrument,
The plane that the interior string of a musical instrument and the import exterior point determine is interior string of a musical instrument plane, excessively described rotation axis and with the interior point
The vertical plane of string of a musical instrument plane is second plane of reference, projection of the interior string of a musical instrument on second plane of reference and the rotation
Angle between axis is that interior the string of a musical instrument angle d2, d2 meet relational expression：30°≤d2≤50°.
In some embodiments, the vane inlet area is S1, and the blade exit area meets for S2, S1 and S2 to close
It is formula：0.2≤S1/S2≤0.5.
In some embodiments, the intersection point of the outlet string of a musical instrument and the transcapsidation is outlet exterior point, the outlet string of a musical instrument with
The intersection point of the wheel hub is point in outlet, from the outlet exterior point towards the direction put in the outlet on, the angle of outlet by
It is cumulative big.
In some embodiments, on from the air inlet towards the direction of the air outlet, the thickness of the blade by
It is decrescence small.
Flow-mixing blower fan according to embodiments of the present invention, including：Shell limits installation cavity in the shell；It is described previously
Mixed flow wind wheel, the mixed flow wind wheel is located in the installation cavity；Motor, the motor shaft of the motor and the mixed flow wind wheel
The wheel hub is connected the mixed flow wind wheel is driven to rotate；Electric machine support, the electric machine support are set on the housing with support
The motor；Determine leaf, described to determine leaf and be located in the installation cavity, the air side determined leaf and be located at the mixed flow wind wheel.
Flow-mixing blower fan according to embodiments of the present invention, due to being equipped with the mixed flow wind wheel, compared to traditional forward multiple wing formula
Centrifugal blower, it is comparable in airflow pressure, it can realize and directly inhale in line form, and since mixed flow wind wheel eliminates
Spiral case, size can be than traditional smoke machine blower fan system smallers.And what the flow-mixing blower fan air inlet of the present embodiment radiated makes an uproar
Sound is smaller than centrifugal blower, flows and stablizes compared with centrifugal blower, can reduce the reproduced air-flow noise of whole system.
In some embodiments, the flow-mixing blower fan, further includes：Locking member, the locking member are located on the wheel hub
The mixed flow wind wheel lock to be connected on to the motor shaft of the motor；Wind wheeling cover, the wind wheeling cover is buckled on the pedestal and outer cover
The locking member.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1 is the overall structure diagram of the mixed flow wind wheel of the embodiment of the present invention.
Fig. 2 be the mixed flow wind wheel of the embodiment of the present invention blade in face schematic diagram.
Fig. 3 is the schematic diagram of the inlet angle of the blade of the mixed flow wind wheel of the embodiment of the present invention.
Fig. 4 is the schematic diagram of the angle of outlet of the blade of the mixed flow wind wheel of the embodiment of the present invention.
Fig. 5 is the schematic diagram of the horizontal projected angle of import of the blade of the mixed flow wind wheel of the embodiment of the present invention.
Fig. 6 is the schematic diagram at the outlet floor projection angle of the blade of the mixed flow wind wheel of the embodiment of the present invention.
Fig. 7 is the schematic diagram at the import vertical projection angle of the blade of the mixed flow wind wheel of the embodiment of the present invention.
Fig. 8 is the vane inlet area of the mixed flow wind wheel of the embodiment of the present invention and the schematic diagram in blade exit face.
Fig. 9 is the schematic diagram of the exterior point string of a musical instrument angle of the blade of the mixed flow wind wheel of the embodiment of the present invention.
Figure 10 is the overall structure diagram of the mixed wheel wind turbine of the embodiment of the present invention.
Figure 11 is the overall structure exploded perspective view of the mixed flow wind wheel of the embodiment of the present invention.
The vertical profile figure of the mixed flow wind wheel of Figure 12 embodiment of the present invention.
Reference numeral：
Flow-mixing blower fan 1
Mixed flow wind wheel 10,
Transcapsidation 110, air inlet 111, air outlet 112, wheel hub 120, pedestal 130, blade 140,
Shell 20,
Upper shell 210, lower housing 220,
Motor 30, electric machine support 40, determine leaf 50, locking member 60, wind wheeling cover 70,
Inlet angle a1, angle of outlet a2, the horizontal projected angle b1 of import, outlet floor projection angle b2, import vertical projection angle c1,
Exterior point string of a musical instrument angle d1,
Point A1 in import, the interior point A2 in outlet,
Import exterior point B1, outlet exterior point B2
Rotation axis L1, the first reference line L2, the second reference line L3,
Pressure face S1, suction surface S2, middle face S3,
Middle face import curve M1, middle face exit curve M2,
Import string of a musical instrument N1, outlet string of a musical instrument N2.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".The present invention's
In description, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The concrete structure of mixed flow wind wheel 10 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 9.
As shown in Fig. 1, Fig. 8, mixed flow wind wheel 10 according to embodiments of the present invention includes transcapsidation 110, wheel hub 120 and multiple leaves
Piece 140.Transcapsidation 110 has air outlet 112 and air inlet 111 in opposite end, and wheel hub 120 is located in transcapsidation 110, wheel hub 120
Pedestal 130 is equipped in one end towards air inlet 111, pedestal 130 is set around the rotation axis L1 of wheel hub 120, multiple blades
140 being circumferentially arranged along wheel hub 120, the inner end of each blade 140 are connected with wheel hub 120, the outer end of each blade 140 and transcapsidation
110 are connected, and each blade 140 is connected with pedestal 130.It is understood that the mixed flow wind wheel 10 of the embodiment of the present invention is working
When 140 synchronous rotary of transcapsidation 110, wheel hub 120 and multiple blades, compared to traditional smoke machine centrifugal blower, the embodiment of the present invention
Mixed flow wind wheel 10 eliminates spiral case, simplifies the structure of wind wheel.And due to transcapsidation 110 in opposite end with air inlet 111
With air outlet 112, realize mixed flow wind wheel 10 and directly inhale in line characteristic, and the outer edge of blade 140 is connected in transcapsidation 110,
Reduce the noise that blade tip vortex is introduced.
As shown in Fig. 2, each blade 140 is respectively provided with pressure face S1, suction surface S2 and middle face S3, middle face S3 and pressure face S1
The distance between be equal to the distance between middle face S3 and suction surface S2.That is, pressure is arrived at any point on middle face S3 respectively
The distance of power face S1 and suction surface S2 are equal.Middle face S3 and blade 140 are towards the intersection between the end face of air inlet 111
Face import curve M1, middle face S3 and blade 140 towards the intersection between the end face of air outlet 112 be middle face exit curve M2.
It should be noted that since the distance between middle face S3 and pressure face S1 are equal to the distance between middle face S3 and suction surface S2,
That is middle face S3 is the most intermediate face of blade 140, the curve on the S3 of face weighs inlet angle a1 and the outlet of blade 140
Angle a2 has preferable representativeness, can preferably describe the fluid behaviour at 140 inlet side of blade and air side.
As shown in figs 2-4, the tangent line of the arbitrary point on middle face import curve M1 and cross the point and with rotation axis L1 phases
Angle between parallel parallel lines is inlet angle a1, and a1 meets relational expression：10°≤a1≤40°.That is, inlet angle a1
It is the angle of the parallel lines of the tangent line and shaft axis of arbitrary point on middle face import curve M1.It is arbitrary on middle face exit curve M2
The tangent line of point and the angle crossed between the point and the parallel lines parallel with rotation axis L1 are angle of outlet a2, and a1 meets relationship
Formula：35°≤a2≤75°.That is, angle of outlet a2 is the flat of the tangent line of arbitrary point and shaft axis on middle face exit curve M2
The angle of line.According to narration it is found that there are inlet angle a1 and angle of outlet a2, sheets at the arbitrary point on middle face import curve M1
All inlet angle a1 of invention are controlled in the range of 10 ° -40 °, and all outlet ports angle a2 is controlled in 35 ° of -75 ° of models
In enclosing, it was proved that, such angular range is advantageously implemented the function of " directly inhaling in line ", under this angular range, gas
Stream enters wind turbine to wind turbine is left from air inlet 111, and the angle that air-flow turns to is smaller, compared to the stream of traditional multiple wing type centrifugal blower fan
Dynamic loss is smaller, ensure that outlet air wind pressure and air output.
As shown in figure 8, middle face import curve M1 respectively with transcapsidation 110, pedestal 130 intersection point between line be import string
The area that line N1, import string of a musical instrument N1 revolve around it mono- week annular surface formed of axis L1 is 140 inlet -duct area of blade, middle face outlet
Curve M2 respectively with transcapsidation 110, wheel hub 120 intersection point between line for outlet string of a musical instrument N2, outlet string of a musical instrument N2 revolve around it axis
The area of mono- week annular surface formed of line L1 is 140 discharge area of blade, 140 inlet -duct area of blade and 140 discharge area of blade
Differ.What needs to be explained here is that the annular surface of annular surface and blade 140 outlet of 140 import of blade can be anchor ring
It can be circular conical surface.In addition, 140 inlet -duct area of blade is differed with 140 discharge area of blade, different functions can be realized.Example
Such as, in the embodiment having, 140 inlet -duct area of blade is big more than 140 discharge area of blade, that is, import, and outlet is small, in this way
In the case of equal rotating speed, outlet air wind pressure is larger.In another example in the embodiment having, 140 inlet -duct area of blade is less than blade
140 discharge areas, that is, import are small, and outlet is big, and in this way in the case of equal rotating speed, air-out volume is more.It works as a result,
Personnel can design the magnitude relationship of 140 inlet -duct area of blade and 140 discharge area of blade according to actual conditions, to realize difference
Function, so as to expand the scope of application of the mixed flow wind wheel 10 of the embodiment of the present invention.
Flow-mixing blower fan 1 according to embodiments of the present invention, due to transcapsidation 110 in opposite end with air inlet 111 and outlet air
Mouth 112, realizes mixed flow wind wheel 10 and directly inhales in line characteristic, and all inlet angle a1 are controlled the range at 10 ° -40 °
It is interior, all outlet ports angle a2 is controlled in the range of 35 ° -75 °, ensure that air-flow enters wind turbine to leaving wind from air inlet 111
Machine is, the angle that air-flow turns to is smaller, and the flow losses compared to traditional multiple wing type centrifugal blower fan are smaller, ensure that outlet air wind pressure and
Air output.Further, since 140 inlet -duct area of blade is differed with 140 discharge area of blade, staff can be according to actual conditions
The magnitude relationship of 140 inlet -duct area of blade and 140 discharge area of blade is designed, to realize different functions, so as to expand this
The scope of application of the mixed flow wind wheel 10 of inventive embodiments.
In some embodiments, as shown in figure 5, import string of a musical instrument N1 and the intersection point of pedestal 130 are point A1 in import, import is crossed
Interior point A1 and with plane perpendicular rotation axis L1 be first level face, what needs to be explained here is that, first level face is not
Absolute horizon, but relative level, no matter how mixed flow wind wheel 10 is placed, it is perpendicular with rotation axis L1 and by into
Point A1's is exactly first level face in mouthful, that is to say, that first level face can be with the absolute horizon in space in practice
It overlaps, it can also there are angles with absolute horizon.Vertical join line in import between point A1 and rotation axis L1 is the first ginseng
Examine line L2, the angle between projection lines and the first reference line L2 of the import string of a musical instrument N1 on first level face is import floor projection
Angle b1, b1 meet relational expression：25°≤b1≤40°.
It is understood that the horizontal projected angle b1 of the import of blade 140 for import string of a musical instrument N1 in first level with first
The angle of reference line L2, due to being point A1 in import and the line at wind wheel center in turn on the first reference line L2, then, according to
Geometrical relationship, the horizontal projected angle b1 of import characterize the amount of curvature of middle face import curve M1 to a certain extent, that is to say, that
The size of the horizontal projected angle b1 of import further defines the size of inlet angle a1, according to it is demonstrated experimentally that by import floor projection
Angle b1 is controlled in the range of 20 ° -40 °, can preferably control the inlet angle a1 of blade 140, so as to fulfill inlet flow is reduced
Bulk diffusion reduces the purpose of import noise.
In some embodiments, it as shown in fig. 6, outlet string of a musical instrument N2 and the intersection point of wheel hub 120 are point A2 in outlet, crosses and exports
Interior point A2 and with plane perpendicular rotation axis L1 be the second horizontal plane, what needs to be explained here is that, the second horizontal plane is not
Absolute horizon, but relative level, no matter how mixed flow wind wheel 10 is placed, it is perpendicular with rotation axis L1 and by into
Point A1's is exactly the second horizontal plane in mouthful, that is to say, that the second horizontal plane can be with the absolute horizon in space in practice
It overlaps, it can also there are angles with absolute horizon.Vertical join line in outlet between point A2 and rotation axis L1 is the second ginseng
Line L3 is examined, it is outlet floor projection to export the angle between projection lines and the second reference line L3 of the string of a musical instrument N2 on the second horizontal plane
Angle b2, b2 meet relational expression：25°≤b2≤40°.
It is understood that the outlet floor projection angle b2 of blade 140 for outlet string of a musical instrument N2 in the second level with second
The angle of reference line L3, due to being point A2 in outlet and the line at wind wheel center in turn on the second reference line L3, then, according to
Geometrical relationship, outlet floor projection angle b2 characterize the amount of curvature of middle face exit curve M2 to a certain extent, that is to say, that
The size of floor projection angle b2 is exported, the size of angle of outlet a2 is further defined, according to it is demonstrated experimentally that floor projection will be exported
Angle b2b1 is controlled in the range of 20 ° -40 °, can preferably control the angle of outlet a2 of blade 140, is exported so as to fulfill reducing
Fluid loss reduces the purpose of outlet noise.
In some embodiments, as shown in fig. 7, the plane for crossing rotation axis L1 is vertical plane, what needs to be explained here is that,
Vertical plane described herein is not the space absolute vertical face in cartesian coordinate system, but opposed vertical face, that is to say, that
It is vertical plane that no matter how flow-mixing blower fan 1, which put the plane of rotation axis L1,.Projections of the import string of a musical instrument N1 on vertical plane
Angle between rotation axis L1 is import vertical projection angle c1, and c1 meets relational expression：60°≤c1≤80°.
It is understood that import vertical projection angle c1 is the folder into projection of the string of a musical instrument on vertical plane and rotation axis L1
Angle, according to experiment prove, c1 is bigger, the fluid loss at air inlet 111 it is smaller and air inlet noise it is smaller, but C1 it is excessive into
The fluid flow direction in air port 111 can generate deleterious effect instead, therefore, show to control C1 at 60 ° -80 ° according to result of the test
In the range of, advantageously reduce inlet fluid loss and air inlet noise.
In some embodiments, the plane for crossing rotation axis L1 is vertical plane, what needs to be explained here is that, it is described herein
Vertical plane is not the space absolute vertical face in cartesian coordinate system, but opposed vertical face, that is to say, that no matter mixed flow wind
The plane how machine 1 put rotation axis L1 is vertical plane.Export projections and rotation axis of the string of a musical instrument N2 on vertical plane
Angle between L1 is that outlet vertical projection angle c2, c2 meet relational expression：0°≤c2≤10°.
It is understood that outlet vertical projection angle is to export projections of the string of a musical instrument N2 on vertical plane and rotation axis L1
Angle, when C2=0 °, outlet string of a musical instrument N2 is parallel with rotation axis L1, and the windage at air outlet 112 is minimum at this time, that is to say, that
It is minimum to export fluid loss.By C2 controls in the range of 0 ° -10 °, outlet fluid loss is advantageously reduced, improves flow-mixing blower fan 1
Air-out volume.
In some embodiments, as shown in figure 9, import string of a musical instrument N1 and the intersection point of transcapsidation 110 are import exterior point B1, import string
The intersection point of line N1 and pedestal 130 is point A1 in import, and the vertical join line between import exterior point B1 and rotation axis L1 is exterior point string
Line, the plane that point A1 is determined in the exterior point string of a musical instrument and import are exterior point string of a musical instrument plane, mistake rotation axis L1 and with exterior point string of a musical instrument plane
Vertical plane is first plane of reference, and the angle between projection and rotation axis L1 of the exterior point string of a musical instrument on first plane of reference is outer
Point string of a musical instrument angle d1, d1 meet relational expression：30°≤d1≤50°.It is understood that the exterior point string of a musical instrument is import exterior point B1 and rotation
Vertical join line between shaft axis L1, then the exterior point string of a musical instrument presss from both sides between the projection and rotation axis L1 on first plane of reference
Angle, this angle can characterize blade 140 in degreeof tortuosity of the entrance with respect to pedestal 130, and the degreeof tortuosity of blade 140 influences
The matching degree of inlet air flow flow direction and 140 shape of blade, is proved according to experiment, by d1 controls when between 30 ° -50 °, gas
Stream flow direction is preferable with the matching degree of 140 shape of blade, and windage loss is small, and noise is low.
In some embodiments, import string of a musical instrument N1 and the intersection point of transcapsidation 110 are import exterior point B1, import string of a musical instrument N1 and pedestal
130 intersection point is point A1 in import, and the vertical join line in import between point A1 and rotation axis L1 is the interior string of a musical instrument, the interior string of a musical instrument
It is interior string of a musical instrument plane with the plane that import exterior point B1 is determined, crosses rotation axis L1 and be with the interior vertical plane of string of a musical instrument plane
Second plane of reference, the angle between projection and rotation axis L1 of the interior string of a musical instrument on second plane of reference is interior string of a musical instrument angle
D2, d2 meet relational expression：30°≤d2≤50°.It is understood that interior string of a musical instrument for point A1 in import and rotation axis L1 it
Between vertical join line, then angle between projection and rotation axis L1 of the interior string of a musical instrument on first plane of reference, this angle
Blade 140 can be characterized in degreeof tortuosity of the entrance with respect to transcapsidation 110, the degreeof tortuosity of blade 140 affects inlet air flow
The matching degree of flow direction and 140 shape of blade is proved according to experiment, by d2 controls when between 30 ° -50 °, air flow direction and leaf
The matching degree of 140 shape of piece is preferable, and windage loss is small, and noise is low.
In some embodiments, 140 inlet -duct area of blade is S1, and 140 discharge area of blade meets relationship for S2, S1 and S2
Formula：0.2≤S1/S2≤0.5.It is understood that the inlet -duct area of blade 140 is less than the discharge area of blade 140 identical
The air output of air outlet 112 is increased in the case of rotating speed, as 0.2≤S1/S2≤0.5, the air output of air outlet 112 increases
Amplitude it is larger, improve the air output of mixed flow wind wheel 10.Certainly in other embodiments of the invention, user can be according to need
The ratio of S1/S2 is adjusted, and it should be noted that in an embodiment of the present invention, 140 inlet -duct area of blade can also be big
In 140 discharge area of blade.
In some embodiments, outlet string of a musical instrument N2 and the intersection point of transcapsidation 110 are outlet exterior point B2, export string of a musical instrument N2 and wheel hub
120 intersection point is point A2 in outlet, and out of outlet the outlet of exterior point B2 directions on the direction of point A2, angle of outlet a2 gradually increases.
That is the side angle of outlet a2 closer to wheel hub 120 is bigger, it should be noted that blade 140 is closer to the ground of wheel hub 120
Side space is smaller, and angle of outlet a2 here is bigger, is more conducive to outlet air, can more reduce outlet air fluid loss.Certainly, in this hair
In bright other embodiment, angle of outlet a2 can also remain constant.
In some embodiments, on from air inlet 111 towards the direction of air outlet 112, the thickness of blade 140 gradually subtracts
It is small.Blade 140 at air outlet 112 is relatively thin to be conducive to outlet air, reduces outlet air fluid loss.
Additional description is needed exist for, parameter b1, b2, c1, c2, d1 and d2 of the embodiment of the present invention are to pass through experiment
The preferably range obtained, is not concrete restriction, and designer can arbitrarily adjust above-mentioned parameter as needed.
In some embodiments, the quantity of blade 140 proves that the quantity of blade 140 is got between 6-10 pieces according to experiment
More, air output is bigger, but wind pressure can reduce, therefore the quantity control of blade 140 both can guarantee outlet air between 6-10
Amount, and can guarantee outlet air wind pressure.
The mixed flow wind wheel 10 of a specific embodiment of the invention is described below with reference to Fig. 1-Fig. 9.
As shown in Fig. 1, Fig. 6, mixed flow wind wheel 10 includes transcapsidation 110, wheel hub 120 and six blades 140.Transcapsidation 110 is in phase
There is air outlet 112 and air inlet 111 to both ends, wheel hub 120 is located in transcapsidation 110, and wheel hub 120 is towards air inlet 111
One end is equipped with pedestal 130, and pedestal 130 is set around the rotation axis L1 of wheel hub 120, circumferential direction of multiple blades 140 along wheel hub 120
Arrangement, the inner end of each blade 140 are connected with wheel hub 120, and the outer end of each blade 140 is connected with transcapsidation 110, each blade
140 are connected with pedestal 130.
As shown in Fig. 2, each blade 140 is respectively provided with pressure face S1, suction surface S2 and middle face S3, middle face S3 and pressure face S1
The distance between be equal to the distance between middle face S3 and suction surface S2.As shown in figure 3, the direction of middle face S3 and blade 140 are entered the wind
Intersection between mouthfuls 111 end face is middle face import curve M1, the end face towards air outlet 112 of middle face S3 and blade 140 it
Between intersection be middle face exit curve M2.As shown in figure 4, the tangent line of arbitrary point on middle face import curve M1 and cross the point and
Angle between the parallel lines parallel with rotation axis L1 is inlet angle a1, and a1 meets relational expression：10°≤a1≤40°.Middle face
The tangent line of arbitrary point on exit curve M2 and the angle crossed between the point and the parallel lines parallel with rotation axis L1 are
Bicker a2, a1 meet relational expression：35°≤a2≤75°.Angle of outlet a2 in shell 20 towards gradually increasing on the direction of wheel hub 120,
On from air inlet 111 towards the direction of air outlet 112, the thickness of blade 140 is gradually reduced.
As shown in figure 8, middle face import curve M1 respectively with transcapsidation 110, pedestal 130 intersection point between line be import string
The area that line N1, import string of a musical instrument N1 revolve around it mono- week annular surface formed of axis L1 is 140 inlet -duct area of blade, middle face outlet
Curve M2 respectively with transcapsidation 110, wheel hub 120 intersection point between line for outlet string of a musical instrument N2, outlet string of a musical instrument N2 revolve around it axis
The area of mono- week annular surface formed of line L1 is 140 discharge area of blade, and 140 inlet -duct area of blade is less than 140 exit face of blade
Product.
As shown in figure 5, the intersection point of import string of a musical instrument N1 and pedestal 130 is point A1 in import, cross the interior point A1 of import and with rotation
Plane perpendicular axis L1 is first level face, and the interior vertical join line between point A1 and rotation axis L1 of import is the first reference
Angle between the projection line and the first reference line L2 of line L2, import string of a musical instrument N1 on first level face is the horizontal projected angle of import
B1, b1 meet relational expression：25°≤b1≤40°.As shown in fig. 6, the intersection point of outlet string of a musical instrument N2 and wheel hub 120 is point A2 in outlet,
It crosses point A2 in outlet and is the second horizontal plane with plane perpendicular rotation axis L1, outlet is interior between point A2 and rotation axis L1
Vertical join line for the second reference line L3, between projection lines and the second reference line L3 of the outlet string of a musical instrument N2 on the second horizontal plane
Angle is that outlet floor projection angle b2, b2 meet relational expression：25°≤b2≤40°.
As shown in fig. 7, the plane for crossing rotation axis L1 is vertical plane, projections and rotation of the import string of a musical instrument N1 on vertical plane
Angle between axis L1 is import vertical projection angle c1, and c1 meets relational expression：60°≤c1≤80°.String of a musical instrument N2 is exported vertical
The angle between projection and rotation axis L1 on face is that outlet vertical projection angle c2, c2 meet relational expression：0°≤c2≤10°.
As shown in figure 8, import string of a musical instrument N1 and the intersection point of transcapsidation 110 are import exterior point B1, import string of a musical instrument N1 and pedestal 130
Intersection point is point A1 in import, and the vertical join line between import exterior point B1 and rotation axis L1 is the exterior point string of a musical instrument, the exterior point string of a musical instrument and into
The plane that point A1 is determined in mouthful is exterior point string of a musical instrument plane, and it is first to cross rotation axis L1 and the plane vertical with exterior point string of a musical instrument plane
The plane of reference, the angle between projection and rotation axis L1 of the exterior point string of a musical instrument on first plane of reference are exterior point string of a musical instrument angle d1, d1
Meet relational expression：30°≤d1≤50°.Vertical join line in import between point A1 and rotation axis L1 is the interior string of a musical instrument, interior string
Line is interior string of a musical instrument plane with the plane that import exterior point B1 is determined, crosses rotation axis L1 and the plane vertical with interior string of a musical instrument plane
For second plane of reference, the angle between projection and rotation axis L1 of the interior string of a musical instrument on second plane of reference is interior string of a musical instrument angle
D2, d2 meet relational expression：30°≤d2≤50°.
The concrete structure of flow-mixing blower fan 1 according to embodiments of the present invention is described below with reference to Figure 10-Figure 12.
As shown in Figure 10, flow-mixing blower fan 1 according to embodiments of the present invention includes shell 20, mixed flow wind wheel 10, motor 30, electricity
Machine support 40 and determine leaf 50.Installation cavity is limited in shell 20, narration has existed the structure of mixed flow wind wheel 10 in detail above
This is not repeated, and mixed flow wind wheel 10 is located in installation cavity.30 axis of motor of motor 30 be connected with the wheel hub 120 of mixed flow wind wheel 10 with
Driving mixed flow wind wheel 10 rotates, and electric machine support 40 is located on shell 20 to support motor 30, determines leaf 50 and is located in installation cavity, determines leaf
50 are located at the air side of mixed flow wind wheel 10.
Flow-mixing blower fan 1 according to embodiments of the present invention, due to being equipped with the mixed flow wind wheel 10, compared to traditional forward multiple wing
Formula centrifugal blower, it is comparable in airflow pressure, it can realize and directly inhale in line form, and due to 10 province of mixed flow wind wheel
Spiral case is removed, size can be than traditional smoke machine blower fan system smaller.And 1 air inlet 111 of flow-mixing blower fan of the present embodiment radiates
Noise out is smaller than centrifugal blower, flows and stablizes compared with centrifugal blower, can reduce the reproduced air-flow noise of whole system.
In some embodiments, flow-mixing blower fan 1 further includes locking member 60 and wind wheeling cover 70, and locking member 60 is located at wheel hub 120
On with by 10 interlocking of mixed flow wind wheel, in 30 axis of motor of motor 30, wind wheeling cover 70 is buckled on pedestal 130 and outer cover locking member 60.By
This, locking member 60 can be by the preferably interlocking of mixed flow wind wheel 10 on 30 axis of motor, and wind wheeling cover 70 can to enter mixed flow wind
The wind of machine 1 is as early as possible to circumferentially distributed, and in the runner limited into blade 140.
The flow-mixing blower fan 1 of a specific embodiment of the invention is described below with reference to Figure 10-Figure 12.
As shown in figs. 10-12, the flow-mixing blower fan 1 of the present embodiment includes shell 20, mixed flow wind wheel 10, motor 30, motor branch
Frame 40 and determine leaf 50.Shell 20 includes the upper shell 210 fastened and lower housing 220, after upper shell 210 is fastened with lower housing 220
Installation cavity is limited, mixed flow wind wheel 10 is located in installation cavity.30 axis of motor of motor 30 is connected with the wheel hub 120 of mixed flow wind wheel 10
Mixed flow wind wheel 10 to be driven to rotate, electric machine support 40 is located on shell 20 to support motor 30, determines leaf 50 and is located in installation cavity, fixed
Leaf 50 is located at the air side of mixed flow wind wheel 10.Locking member 60 be located on wheel hub 120 with by 10 interlocking of mixed flow wind wheel in motor 30
30 axis of motor, wind wheeling cover 70 is buckled on pedestal 130 and outer cover locking member 60.
In actual assembled, motor 30 first passes through rubber cushion 80 and is fixed on electric machine support 40, then will using locking member 60
Mixed flow wind wheel 10 is fixed, and wind wheeling cover 70 then is fixed on 10 front end of mixed flow wind wheel, then will be determined leaf 50 and is fixed on electric machine support
On 40, then whole 40 component of electric machine support is fixed on lower casing 20, most upper shell 20 is fixed on lower casing 20 at last,
Design sketch is as shown in the figure shown in 11.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment of the present invention or example.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner combine in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (12)
1. a kind of mixed flow wind wheel, which is characterized in that including：
Transcapsidation, the transcapsidation have air outlet and air inlet in opposite end；
Wheel hub, the wheel hub are located in the transcapsidation, and the wheel hub is equipped with pedestal, the bottom in one end towards the air inlet
Seat ring is set around the rotation axis of the wheel hub；
Multiple blades, the multiple blade are circumferentially arranged along the wheel hub, the inner end of each blade and the wheel hub phase
Even, the outer end of each blade is connected with the transcapsidation, and each blade is connected with the pedestal；
Wherein：
Between the tangent line of arbitrary point on middle face import curve and the excessively point and the parallel lines parallel with the rotation axis
Angle is inlet angle a1, and a1 meets relational expression：10°≤a1≤40°；
Between the tangent line of arbitrary point on middle face exit curve and the excessively point and the parallel lines parallel with the rotation axis
Angle is angle of outlet a2, and a1 meets relational expression：35°≤a2≤75°；Wherein,
Each blade is respectively provided with pressure face, suction surface and middle face, and the distance between the middle face and the pressure face are equal to
The distance between the middle face and the suction surface；
Intersection between the end face of the direction air inlet of the middle face and the blade is the middle face import curve, described
Intersection between the end face of the direction of middle face and the blade air outlet is the middle face exit curve；In addition,
The middle face import curve respectively with the transcapsidation, the pedestal intersection point between line for the import string of a musical instrument, it is described into
The mouth string of a musical instrument is vane inlet area around the area of one week annular surface formed of the rotation axis, and the middle face exit curve divides
Not with the transcapsidation, the wheel hub intersection point between line be the outlet string of a musical instrument, the outlet string of a musical instrument is around the rotation axis
The area of one week annular surface formed is blade exit area, and the vane inlet area is differed with the blade exit area.
2. mixed flow wind wheel according to claim 1, which is characterized in that the intersection point of the import string of a musical instrument and the pedestal be into
Point in mouthful, puts in excessively described import and is first level face with the perpendicular plane of the rotation axis,
It is the first reference line that the vertical join line between the rotation axis is put in the import, and the import string of a musical instrument is described the
The angle between projection line and first reference line on one horizontal plane is the horizontal projected angle b1 of import, and b1 meets relational expression：
25°≤b1≤40°。
3. mixed flow wind wheel according to claim 1, which is characterized in that the intersection point of the outlet string of a musical instrument and the wheel hub is
Point in mouthful, puts in excessively described outlet and is the second horizontal plane with the perpendicular plane of the rotation axis,
Vertical join line in the outlet between point and the rotation axis is the second reference line, and the outlet string of a musical instrument is described the
The angle between projection line and second reference line on two horizontal planes is that outlet floor projection angle b2, b2 meet relational expression：
25°≤b2≤40°。
4. mixed flow wind wheel according to claim 1, which is characterized in that the plane of excessively described rotation axis be vertical plane, institute
The angle stated between projection and the rotation axis of the import string of a musical instrument on the vertical plane is import vertical projection angle c1, and c1 is full
Sufficient relational expression：60°≤c1≤80°.
5. mixed flow wind wheel according to claim 1, which is characterized in that the plane of excessively described rotation axis be vertical plane, institute
The angle stated between projection and the rotation axis of the outlet string of a musical instrument on the vertical plane is that outlet vertical projection angle c2, c2 are full
Sufficient relational expression：0°≤c2≤10°.
6. mixed flow wind wheel according to claim 1, which is characterized in that the intersection point of the import string of a musical instrument and the transcapsidation be into
Mouth exterior point, the intersection point of the import string of a musical instrument and the pedestal is point in import, between the import exterior point and the rotation axis
Vertical join line for the exterior point string of a musical instrument, the exterior point string of a musical instrument plane determining with point in the import is exterior point string of a musical instrument plane, crosses institute
It is first plane of reference to state rotation axis and the plane vertical with the exterior point string of a musical instrument plane, and the exterior point string of a musical instrument is in the described first ginseng
The angle examined between projection and the rotation axis on face is that the exterior point string of a musical instrument angle d1, d1 meet relational expression：30°≤d1≤
50°。
7. mixed flow wind wheel according to claim 1, which is characterized in that the intersection point of the import string of a musical instrument and the transcapsidation be into
The intersection point of mouth exterior point, the import string of a musical instrument and the pedestal is point in import, is put between the rotation axis in the import
Vertical join line for the interior string of a musical instrument, the interior string of a musical instrument is interior string of a musical instrument plane with the plane that the import exterior point determines, crosses institute
It is second plane of reference to state rotation axis and the plane vertical with the interior string of a musical instrument plane, and the interior string of a musical instrument is in the described second ginseng
The angle examined between projection and the rotation axis on face is that interior the string of a musical instrument angle d2, d2 meet relational expression：30°≤d2≤
50°。
8. mixed flow wind wheel according to claim 1, which is characterized in that the vane inlet area is S1, and the blade goes out
Open area is that S2, S1 and S2 meet relational expression：0.2≤S1/S2≤0.5.
9. mixed flow wind wheel according to claim 1, which is characterized in that the string of a musical instrument and the intersection point of the transcapsidation of exporting is
The intersection point of mouth exterior point, the outlet string of a musical instrument and the wheel hub is point in outlet, from the exterior point that exports towards point in the outlet
Direction on, the angle of outlet gradually increases.
10. mixed flow wind wheel according to claim 1, which is characterized in that from the air inlet towards the air outlet
On direction, the thickness of the blade is gradually reduced.
11. a kind of flow-mixing blower fan, which is characterized in that including：
Shell limits installation cavity in the shell；
Mixed flow wind wheel according to any one of claim 1-10, the mixed flow wind wheel are located in the installation cavity；
Motor, the motor shaft of the motor are connected the mixed flow wind wheel is driven to rotate with the wheel hub of the mixed flow wind wheel；
Electric machine support, the electric machine support set on the housing to support the motor；
Determine leaf, described to determine leaf and be located in the installation cavity, the air side determined leaf and be located at the mixed flow wind wheel.
12. flow-mixing blower fan according to claim 11, which is characterized in that further include：
Locking member, the locking member are located on the wheel hub for the mixed flow wind wheel lock to be connected on the motor shaft of the motor；
Wind wheeling cover, the wind wheeling cover is buckled on the pedestal and locking member described in outer cover.
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| CN201810085093.0A CN108252949A (en) | 2018-01-29 | 2018-01-29 | Mixed flow wind wheel and flow-mixing blower fan |
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| CN201810085093.0A CN108252949A (en) | 2018-01-29 | 2018-01-29 | Mixed flow wind wheel and flow-mixing blower fan |
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| CN109512663A (en) * | 2018-12-14 | 2019-03-26 | 湖南大商帮科技股份有限公司 | The net cigarette moxibustion instrument of open fire |
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| CN111089069A (en) * | 2018-10-23 | 2020-05-01 | 台达电子工业股份有限公司 | Fan with cooling device |
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| WO2021147606A1 (en) * | 2020-01-20 | 2021-07-29 | 珠海格力电器股份有限公司 | Impeller, mixed flow blower and air conditioner |
| US11143196B2 (en) * | 2018-12-03 | 2021-10-12 | Air Distribution Technologies Ip, Llc | Fan system |
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Application publication date: 20180706 |